▎ 摘　　要

Fabrication of graphene via oxidation-reduction method is a rewarding approach in terms of scalability and cost of production. In this regard, restoration of the lattice defects presents in graphene oxide (GO) during the thermal reduction in the presence of a carbon source is one of the best alternatives. However, the mechanism of restoration is still unclear. This article presents the restoration in the presence of ethanol at a moderately high temperature by using a simple chemical vapor deposition setup, mainly focusing on the contribution of ethanol in the restoration with the increase in reduction time to postulate a possible mechanism. Raman spectroscopy, X-ray photoelectron spectroscopy, and for the first time atomic force microscopy along with Kelvin probe force microscopy were adopted to fulfill the objective. (c) 2018 The Japan Society of Applied Physics